13585252044 has 96 divisors (see below), whose sum is σ = 39042372096. Its totient is φ = 3580323840.

The previous prime is 13585252033. The next prime is 13585252061. The reversal of 13585252044 is 44025258531.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 13585251993 and 13585252011.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1849459 + ... + 1856789.

It is an arithmetic number, because the mean of its divisors is an integer number (406691376).

Almost surely, 2^13585252044 is an apocalyptic number.

13585252044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13585252044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19521186048).

13585252044 is an abundant number, since it is smaller than the sum of its proper divisors (25457120052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13585252044 is a wasteful number, since it uses less digits than its factorization.

13585252044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9055 (or 9053 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 39.

The spelling of 13585252044 in words is "thirteen billion, five hundred eighty-five million, two hundred fifty-two thousand, forty-four".